What you are missing is I live in NY I need this to continue up to the Supreme court to overturn the laws in NY!
This case had already been to the 9th Circuit (and was sent back to the lower District Court, with no injunction during appeal), and if it is appealed back to the 9th Circuit and is overturned, it will certainly be appealed to SCOTUS.
In Mar 2014, SCOTUS Justice Kennedy (now retired) refused to accept an identical appeal on magazine limits from a voter approved measure in Sunnyvale CA,
on an emergency basis, without comment. That was not a ruling on the merits of the appeal, but only a decision to allow the ordinary appeal process continue without SCOTUS intervention as an emergency.
A NJ Fed Dist Ct has upheld a magazine limit of 10 rounds.
Ten states and the District of Columbia have enacted laws banning large
(normal) capacity ammunition magazines: California, Colorado, Connecticut, Hawaii, Maryland, Massachusetts, New Jersey, New York, and Vermont. All of these jurisdictions except Colorado and Vermont also ban assault weapons. And these bans vary between all guns, and handguns only.
There are also mag bans in a number of big cities in some other states.